Low-multipolarity magnetic transitions in [sup 30]Si, [sup 32]S, and [sup 34]S studied by 180[degree] electron scattering

Journal Article · Wed Jun 01 04:00:00 EDT 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.49.3000· OSTI ID:7238862

Petraitis, M; Connelly, J P; Crannell, H; Fagg, L W; O'Brien, J T; Sober, D I ^[1]; Deininger, J R; Williamson, S E ^[2]; Lindgren, R ^[3]; Raman, S ^[4]

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1. Department of Physics, The Catholic University of America, Washington, District of Columbia 20064 (United States)
2. Department of Physics and Nuclear Physics Laboratory, University of Illinois, Urbana-Champaign, Urbana, Illinois 61801 (United States)
3. Department of Physics, University of Virginia, Charlottesville, Virginia 22901 (United States)
4. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)

Low-multipolarity magnetic transitions of [sup 30]Si, [sup 32]S, and [sup 34]S were studied by 180[degree] inelastic electron scattering at low momentum transfers ([ital q][similar to]0.3--0.5 fm[sup [minus]1]). These measurements, made in the excitation energy region from 9 to 14 MeV, revealed several previous unreported levels. These are the first low-[ital q] results obtained by electron scattering for [sup 30]Si and [sup 34]S. Multipolarities and transition strengths for all the observed transitions were determined in a model-independent analysis. A large fragmentation of [ital M]1 strength is observed in the 4[ital N]+2 nuclei [sup 30]Si and [sup 34]S, while more strength is concentrated into fewer transitions in the self-conjugate nucleus [sup 32]S. The experimental [ital M]1 strength distributions are compared with configuration-mixing shell-model calculations. The sums of the transition strengths are in good agreement with recent shell-model calculations using an effective [ital M]1 operator.

• DOE Contract Number: AC05-84OR21400
• OSTI ID: 7238862
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 49:6; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663110 -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663420* -- Lepton-Induced Reactions & Scattering-- (1992-)
663530 -- Nuclear Mass Ranges-- A=20-38-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHARGED-PARTICLE REACTIONS
ELECTRON REACTIONS
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
INELASTIC SCATTERING
ISOTOPES
LEPTON REACTIONS
LIGHT NUCLEI
M1-TRANSITIONS
MATHEMATICAL MODELS
MATRIX ELEMENTS
MEV RANGE
MEV RANGE 01-10
MEV RANGE 10-100
MULTIPOLE TRANSITIONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
SCATTERING
SHELL MODELS
SILICON 30 TARGET
STABLE ISOTOPES
SULFUR 32 TARGET
SULFUR 34
SULFUR ISOTOPES
TARGETS